Steam-trap.



' No. 781,329. PATENTED JAN. 31, 1905.

J.. FJBU-RNS.

STEAM TRAP. APPLICATION FILED AUG. 22,1904.

ATT sT 62m INQENTORZ-I I g ai m,

. BY QM WW AT'T s.

il'o. 781,329.

iatented J anuary 81, 1905;

PATENT OFFICE.

JOHN F. BuiiNsoF sir. Louis, MISSOURI.

. STEAM-TRAP.

' SPECIF ICATION forming part of Letters Patent No. 781,329, dated January 31, 1905.

i l Application filed August 22,1904. Serial No. 221,720.

To all whom it may concern.-

7 Be it known that I, JOHN F. BURNS, a citizen of the United States, and a resident of St. Louis, Missouri, have invented acertain new and useful Telltale Steam-Trap, of which the following is aspecification containing a full, clear, and exact descriptlon, reference being bad to the accompanying drawing, forming apart hereof.

My invention relates to telltale steam-traps; and it consists of the novel features herein shown, described, and claime 1n the drawing the figure is a central vertical section longitudinally of the trap.

Referring to the drawingin detail, the trap consists of a suitable casting 1, having a re-.

movable cap 2 and a partition-wall 3 arranged to form the receiving chamber 1 and the 'blow-ofl chamber 5. The cap-plate 2 is elevated at one end to form-the dome 6, and the inlet-pipe 7 is tapped into this dome 6 and, communicates with-the chamber 4:. The outletpipe 8 is tapped through the plate 2 into the chamber 5. A petcock9 is tapped into the plate 2 to let air out of the chamber 4:, and a similar petcock 10. is tapped into the plate 2 to let air out of the chamber The automatic valve seat casting 11 is tapped into the partition-wall 3, the valveseat 12 insaid casting being funnel-shaped, with its large end toward the chamber 4:. A pivot 13 is mounted horizontally in the chamber 4:, one end ofthe pivot being near the transverse center of the chamber and the other end of the pivot being secured to the wall. A lever 14 is mounted upon the pivot,

said lever. being normally slightly inclined from a vertical position. An arm '15 extends from the upper end of the lever to a position below the dome 6, and a float 16 is secured to the free end ofthe arm. A valve-stem 17 is pivotally connected to the lower end of the lever 14:, and. the valve 18 is fixed upon the end of the stem 17 in position to engage the seat 12. A guide-pin 19 extends from the point of the valve 18 through the valve-seat casting 11, so that when the valve 12 moves away from the seat it will be supported by the guide-pin 19. The valve 12 is operated to and from its seat by the raising and lowering of the float 16. The val ve-operating stem 20 is mounted infposition to operate through the plate 2, andLthe arm 21 extends from the upper endof the lever 14 in position to be engaged by thestem of the valve 20, so thatif 5 the Valve 12 sticks in its seat it may be withdrawn by screwing down the valve upon the arm 21. A valve-supporting arm 22 extends from the lower endof the lever 1 1 under the valve-stem 17, soas to support the valve-stem when the valve is unseated beyond the limits of the guide-pin 19, there being fingers 23 extending upwardly-from the end of the arm 22 beside the stem 17. 1. A valve-seat casting2i is tapped through the 6 partition-wall 3 near the bottoms of the chambers, and a Valve-seat 25 is formed in the casting uponthe side toward the chamber 5. The valve-stem 26 is mounted through the wall of the chamber 5, and the valve 27, carried by the valve-stem, is in position to engage the valveseat 25. a The inlet-pipe 7 may be attached to any device from which it is desired to draw the condensation,. and the water of condensation will the float lowers by lowering the level of the 5 I water, the valve will again be seated until the water rises. If the passage through the casting 11 becomes clogged and the chamber 4 fills with water, the valve 27 is manually opened, and the steam-pressure will blow the. water 9 out of the chamber 4 through the chamber 5 into the pipe 8, and the reaction will unseat the valve 12. This operation of blowing the water out through the valve-casting 2 1 will clean all the dirt out of the trap. A waterglass 28 is mounted in "position to show the height of the water within the trap.

Thus I have produced a telltale steamtrap-that is, one the condition of which may readily be ascertained from the outside with- I00 out taking the trap to pieces. When the airvalve 9 is open, if steam is discharged it indicates that the trap is in working order. If water is discharged, it indicates that the valve 12 is out of order either by sticking or by being clogged.

The water-glass 28 will be nearly filled with water when the trap is in Working order, and by watching the water glass the alternate opening and closing of the valve 12 may be timed.

By the various manipulations described the trap may be cleaned and operated indefinitely without removing the cap-plate 2 or any other part.

I claim 1. In a telltale steam-trap: a suitable casting having a partition and forming a receivingehamber. there being valve-openings through said partition,one near the bottom and one near the center; a valve-stem extending through the blow-off chamber; a valve upon the end of the valve-stem for closing the lower opening in the partition; a pivot in the receiving-chamber; a lever mounted upon the pivot; a float upon one end of the lever; a valve at the other end of the lever and closing the upper opening in the partition; substantially as specified.

2. In a telltale steam-trap: a suitable castinghaving a partition and forming a receivingchamber, there being valve-openings through said partition,one near the bottom and one near the center; a valve-stem extending through the blow-off chamber; a valve upon the end of the valve-stem for closing the lower opening in the partition; a pivot in the receiving-chamber; a lever mounted upon the pivot; a float upon one end of the lever; a valve at the other end of the lever and closing the upper opening in the partition; and means for manually unseating the float-controlled valve; substantially as specified.

3. In a telltale steam-trap: a receivingchamber; a blo\ '-ofi? chamber; a lower passage leading from the receiving-chamber to the blow-off chamber; a valve for controlling said lower passage; an upper passage leading from the receiving-chamber to the blow-off chamher; a float-valve controlling said upper passage; and means for manually unseating the float-valve; substantially as specified.

In testimony whereof I have signed my name to this specification in presence of two subscribing witnesses.

JOHN F. BURNS. Witnesses:

ALFRED A. EICKS, M. M. BRAZILL. 

